eHealth is assigning High Speed MTF to these elements upon discovery, as mentioned below:
DeviceName-Serial0/0/0 - mib2-v2c-hs-IF-20.mtf 2M:2M
DeviceName-Serial0/0/1 - mib2-v2c-hs-IF-20.mtf 1M:1M
These interfaces are 1Mbps and 2Mbps respectively. We should not be polling high speed counters. We should be polling the 32 bit counters.
When we change the MTF to Mib2.mtf or Mib2-v2c.mtf, then it polls fine, so this is a problem where 32 bit counters are being polled as high speed counters due to wrong MTF being assigned.